Show:
Basic Chemistry
Elements and Compounds
Chemical Properties
Chemical Changes
Hodgepodge
100

The most basic building block of matter

atoms

100

Which of the following is NOT an element?

1. Oxygen

2. Helium

3. Aluminum

4. Water

water

100

This is the substance which contributes H+ ions

acids

100

These are the substances that are present before a chemical change occurs

reactants

100

This is the type of reaction that occurs when an acid and base are mixed together

neutralization

200

This is the particle in the atom which has a neutral charge

neutron

200

A compound has two or more different what

elements

200
A material which changes color in the presence of acids or bases

indicator

200

This is the type of reaction in which energy is absorbed from the surroundings

endothermic

200

how does temperature affect the rate of reaction?

the greater the temperature, the faster the reaction rate.

300

The most common type of element on the Periodic Table of Elements

metals

300

what is the center of the atom called?

nucleus

300

Name a substance which is produced in a neutralization reaction

water OR salt

300

When iron rust, iron (Fe) combines with oxygen (O2) to form Fe2O3.  What type of reaction is this?

Synthesis reaction

300

If fluorine contains 10 neutrons, 9 protons and 10 electrons, what charge does it have?

-1

400

What type of matter is H2 (hydrogen gas)

element

400

What was one conclusion Rutherford's experiment made about the atom?

1. atoms are mostly empty space

2. the nucleus contains most of the mass

3. the nucleus is extremely dense

400

Ions in a liquid which conducts electricity is called

electrolytes

400

This is the particle which creates a chemical bond when it is shared between atoms

electrons

400

This is the smallest particle of a compound that still has all the qualities of that compound

molecule

500

This was the first person to come up with the idea of the atom

Democritus

500

Why is sulfuric acid (H2SO4) considered a compound where S8 (sulfur) is not?

Sulfuric acid is made of two or more elements where sulfur is not.

500

A substance has a pH of 7.  How does the pH change if OH- ions are added?

The pH increases
500

What do all elements in the same column of the Periodic Table have in common?

Chemical properties

500

What was the name of the experiment that Rutherford performed on the atom?

The Gold Foil Experiment